Analysis and Design of Three-Layer Perfect Metamaterial-Inspired Absorber Based on Double Split-Serration-Rings Structure

ABSTRACT:

We systematically analyzed, designed, fabricated, and measured a three-layer perfect metamaterial-impressed absorber based mostly on the double split-serration-rings (DSSRs) structure during this communication. The equivalent circuit model was presented to demonstrate the absorbing mechanism. The characters of polarized-insensitivity, wideband, and multiband absorption for the absorber were illuminated by the angular absorptions and surface current distributions. Transformation from wideband absorption with a relative bandwidth of 93.fivepercent from 5.thirty four to 14.seventy two GHz, of that the absorptivity was larger than 90%, to multiband absorption was obtained by rotating DSSR-II of ninety°. Two absorber prototypes with a thickness of three.half dozen mm had been simply implemented using the common printed circuit board fabrication techniques and measured in an exceedingly microwave anechoic chamber. Simulated and experimental results indicated that the right metamaterial-inspired absorber performed wideband and multiband absorption when DSSRs were perpendicular and parallel to each alternative, respectively.

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